What is the effect of mixing gypsum with white cement?Extra amounts may be harmful. If you have high amounts of C3A in your cement, then it may react with the extra sulfates from gypsum to form Ettringite. Ettringite can expand in volume ad my cause cracking in plaster. 5 Recommendations. Tan Manh Do. 4 months ago. Tan Manh Do. Hanoi University of Mining and Geology.Effects of mineral admixtures and additional gypsum on the .Jun 15, 2016 . Mineral admixtures and sulphoaluminate expansive agent were used simultaneously. •. Simulated mass concrete curing condition was used. •. The expansion effects were influenced by mineral admixtures. •. Both strength and expansion effects of GGBS samples were enhanced by adding gypsum.
3.6 - Mineral and Oxide Composition of Portland CementTo accurately calculate the mineral composition of a cement from the oxide composition it is necessary to estimate the true composition of the cement minerals in the clinker and to account for phases other than the main four cement minerals such as gypsum. A more complete description of this useful technique is given in.5.3 - The Hydration Reactions in Concretewhere C6A 3H32 is the mineral ettringite. Since all portland cements contain gypsum, eq. 5.4 is the main hydration reaction for C3A. Small amounts of hydrogarnet formed by eq. 5.3 can sometimes be found in cement pastes, however. If the gypsum in the cement reacts completely before the C3A, then the concentration of.
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What is the effect of mixing gypsum with white cement?
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